Ventilator structure



Dec.-22, 1953 SMITH VENTILATOR STRUCTURE 2 Sheets-Sheet 1 Filed March 18, 1950 Dec. 22, 1953 SMITH 2,663,246

7 VENTILATOR STRUCTURE Filed March 18, 1950 2 Sheets-Sheet 2 172249722 07 Lester 1). $7722?& 59 a' z tzz Patented Dec. 22, 1953 UNITED STATES PATENT DFFICE VENTILATOR STRUCTURE Lester L. Smith, Peoria, Ill.

Application March 18, 1950, Serial N 0. 150,431

3 Claims.

improvement of that shown in the co-pending application of Harold M. Peterson, Serial No. 721,265, filed January 10, 1947, for Ventilator, in and to which application and patent, which application was issued on May 23, 1950, as Letters Patent No. 2,569,016, and I am the assignee of the entire right, title and interest.

One of the objects of this invention is to provide a ventilator structure adapted to fabrication with the two main parts of stamped sheet metal cut and formed to provide a mounting flange and a reinforced peripheral rim, as well as opposed louvers in a relationship giving assurance of protection from the elements, such as rain, snow and sleet.

As another object, my invention has within its purview the provision of a metal louver type ventilator which not only affords double louver protection, but embodies a reinforced rim and mounting frame structure and is fabricated with a minimized number of parts and forming operations.

My invention further comprehends the provision of a louver structure of the type referred to and in which the parts. are constructed and arranged for assembly either with or without a screen covering the louver openings.

Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings in which similar characters of reference indicate similar parts throughout the several views.

Referring to the two sheets of drawings:

Figs. 1, 2 and 3 are respectively rear, side and top views of a ventilator structure embodying a preferred form of this invention;

Fig. .1. is a front view of one of the parts of my preferred ventilator structure showing the developed shape thereof prior to its being formed into the assembled relationship depicted in Figs. 1, 2 and 3;

Fig. 5 is a perspective exploded view illustra ing the parts and their order and relationship in the assembly of my preferred ventilator structure; and

Fig. 6 is a fragmentary'side sectional view, drawn to a larger scale than the other figures of the drawings and showing the parts of my preferred ventilator structure in their assembled relationship.

In the accompanying drawings, I have illustrated an exemplary embodiment of my ventilator structure for illustrative purposes. The disclosed ventilator structure is of generally rectangular shape and adapted to wall mounting. For example, my disclosed ventilator structure suited to use in an outside wall where it is exposed to weather. For such a purpose, it is fabricated from metal, with the sheet metal parts formed from sheet aluminum or galvanized sheet steel. In addition to providing for effective ventilation and insured weather protection, as well as protection from insects and rodents by the inclusion of a screen, when desired, my disclosed ventilator structure further provides an assembly well suited to rapid and economical production in quantities, and a structure embodying a reinforced mounting rim in addition to a mounting flange.

While the ventilator depicted herein is of generally rectangular shape, it may be readily understood that the disclosed principals of structure and assembly are adapted to various shapes, as long as certain relationships of the parts are maintained, as will be more fully explained. As depicted herein, my ventilator structure embodies two metal sheets It and I? which are generally coplanar or flat. Sheet I2 which may be termed the inner sheet of the assembled ventilator structure, is the outer shape and size defining part, and in the present instance, is rectangular. The sheet i 0 of the disclosed structure is the outer sheet of the assembly. The mid-portion of the outer sheet ill, which is indicated in Fig. 4 as being bounded by dotted fold lines Ilia, 322, I30 and Ltd, is of a size to overlie the inner sheet l2 the outer sheet l 6 also having diagonal or beveled corner portions Ma, Mb, Mo and Mid which, in the assembly, extend diagonally across the corners of the inner sheet l2. With the rectangular inner sheet disclosed, the opposite ends of the corner portions of the outer sheet form angles of substantially 45 with the adiacent edges of the inner sheet.

A's integral parts, and prior to its formation into assembled relationship with the inner sheet i2, the outer sheet i=3, as shown in Fig. 4, has

outwardly projecting marginal portions 15a, i517, We and ltd which extend between the beveled corner portions Isa, lib, Mic and Md, thereby defining an internal rectangle of substantially the size of the inner sheet l2. Also, projecting 3 outwardly from the marginal portions Ilia, [5b, [5c and l5d respectively, are additional marginal portions I611, I61), I60 and [6d, each of substantially rectangular shape, and each of which extends between the adjacent beveled corner portions.

A plurality of louvers 31 are integrally formed in the mid-portion oi the outer sheet Iii. For the rectangular construction depicted, the louvers I! are all of substantially the same size and shape, and each has a substantially straight out edge It which is substantially parallel to opposed outer edges of the sheet. In my preferred structure, the formation of the louvers E? is such that the metal of the louver surfaces is formed outwardly and curved at the louver ends to provide relatively complete coverage at the ends and in a direction normal to the face of the plate from louver slots It in the sheets. intermediate the adjacent louvers ll of the sheet are a plurality of substantially coplanar separating portions 23. In addition, the louvers of the groups are separated from the marginal portions i511, Nib, 15c and 15d of the sheet by marginal spaces 22a, 22b, 22c and 22d.

In use, the louvers of the outer sheet IS project outwardly and dowmvardly so that their re spective openings or slots are shielded from the top and at the ends, as well as from the front,

and open downwardly, so that effective weather protection is provided. To provide additional protection from the elements without materially lessening the area. of the openings, my louver as sembly includes the inner sheet l2, and that inner sheet has additional louvers ll which are of the same size, shape and construction as the louvers l! of the outer sheet and are so related to the louvers of the outer sheet in spacing and general disposition that their respective slots iii are aligned with slots l2 of the outer sheet when the two sheets are juxtaposed in i'aee-to-iace relationship, with their respective louvers in inverted relationship and projecting oppositely therefrom, as shown in Figs. 2, 3, 5 and 6. With this rela tionship of parts, the aligned louver slots is and l9 oi the two sheets are doubly protected by the outer louvers which project outwardly and downwardly and the inner louvers which project inwardly and upwardly therefrom.

Exteriorly of the group oi louvers and their respective louver slots, inner sheet H, as shown in Fig. 5, has marginal spaces 23a, 23b, Etc and 23d which correspond to the marginal spaces 22a, 22b, 22c and 22!? respectively of the outer sheet it. In order to hold the two shmi-s in their assembled relationship, and to provide a reinforced rim on the assembled ventilator structure, the marginal portions 15a, [5b, We and 15d of the outer sheet H! are folded around the adjacent edges of the inner sheet l2 and into positions embracing the inner marginal. spaces of the inner sheet. Also, and for the purpose of providing an additional mounting and locating flange for the assembled ventilator structure, the marginal portions Its, 15?), 16c and 15d of the outer sheet are bent to project outwardly in right angular relationship from the marginal portions l5a, till), 150 and l5d respectively. When it is desired that the louver shall provide protection from insects and rodents, a sheet 24 of mesh or screen material of substantially the size of the inner metal sheet 12 is interposed between the inner and outer metal sheets, as shown in Fig. 5, and held in place therebetween by the gripping action of the opposed "A: gi larginal portions of the outer sheet, as shown in To adapt my disclosed louver design to structures of diiierent external configuration, it may be readily understood that the arrangement, size and disposition of the louvers of a group would be such that the louvers have their respective slots aligned with the louvers projecting oppositely and in inverted relationship on the two sheets. In addition, it may be further under stood that the inner and outer sheets would bear the same general relationship with marginal portions of the outer sheet corresponding to the straight sides of the inner sheet and beveled corner portions of the outer sheet having angles calculated to permit the folding of the marginal portions of the outer sheet around the edges of the inner sheet without overlapping.

It may be further appreciated from the disclosure of this ventilator structure that it provides ease and consistency of fabrication in quantities, as well as resulting in an assembly which is securely held together and has a rim reinforced by a triple thickness of the metal sheets, as well as an angularly projecting mounting flange.

While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do not wish to be limited to precise details of construction set forth, but desire to avail myself or all changes within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A ventilator structure comprising, in combination, two metal sheets having formed louvers or" like structure, size and spacing in the midportions thereof, said sheets, in their assembled relationship, being in face-to-face relationship with the louvers of one sheet aligned, opposed and inverted with respect to the louvers of the other sheet and the louvers of the two sheets projecting oppositely therefrom, one of said sheets being of rectangular shape and having marginal spaces around the louvers, the other of said sheets being larger than the first mentioned sheet and having corner portions bevelled to extend across the cornersof the first mentioned sheet the assembled relationship of the sheets, the second mentioned sheet also having two marginal portions along each side, a first of which marginal portions on each side extends between the bevelled corner portions and a second of which projects outwardly from and, beyond each of the first marginal portions, and in the assembly of said sheets, the first marginal portions being folded over the marginal spaces of said one of the sheets to provide a reinforced peripheral rim, and the second marginal portions being bent to project angularly from the rim to provide mounting flanges.

' 2. A ventilator structure as defined in claim 1, and further characterized by a screen of substantially the size of said one of the sheets, and said screen being interposed between and held in place by said sheets in the assembled relationship thereof.

3. A ventilator structure comprising, in combination, two metal sheets having formed louvers correspondingly spaced in the mid-portions thereof, said sheets, in their assembled relation ship, being in face-to-face relationship with the louvers of one sheet aligned in opposed relationship and projecting oppositely from the louvers 5 of the other sheet, one of said sheets having marginal spaces around the louvers and substantially straight outer edges in angular relationship to one another, the other of said sheets being generally larger than the first mentioned sheet and having edge portions which extend from the corners of the first mentioned sheet at angles to the said straight edges thereof in the assembled relationship of the sheets, the larger sheet also having two marginal portions along each side, a first of which marginal portions on 10 each side extends between said edge portions and a second of which projects outwardly from and beyond each of the first marginal portions, and in the assembly of the sheets, the first marginal portions being folded over the marginal spaces of 15 said one of the sheets to provide a reinforced peripheral rim, and the second marginal portions being bent to project angularly from the rim to provide mounting flanges.

LESTER L. SMITH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,677,421 Yager et a1. July 17, 1928 1,690,948 Rote Nov. 6, 1928 2,081,109 Kilb May 18, 1937 2,395,619 Fischer et al Feb. 26, 1946 2,433,272 Greiling Dec. 23, 1947 2,509,016 Peterson May 23, 1950 

